Multi-layer circuit board drilling positioning structure

Abstract

The utility model discloses a multilayer circuit board drilling positioning structure which comprises a base and a circuit board body. The multi-size adaptation assembly comprises inverted-T-shaped plates, strip-shaped bearing grooves, L-shaped sliding blocks, rectangular plates and positioning plates, the inverted-T-shaped plates are movably connected to the two ends of the base, the strip-shaped bearing grooves are formed in the side portions of the base, the two sides of the inverted-T-shaped plates are fixedly connected with one ends of the L-shaped sliding blocks, the other ends of the L-shaped sliding blocks are movably connected with the strip-shaped bearing grooves, and the rectangular plates are fixedly connected with the positioning plates. The side part of the inverted T-shaped plate is movably connected with a rectangular plate and a positioning plate, and the positioning plate is located above the circuit board body. The L-shaped sliding block can continuously move in the strip-shaped bearing groove, so that continuous movement of the inverted-T-shaped plate can be realized, namely continuous adjustment of the movement distance of the positioning plate can be realized, and clamping and positioning of multilayer circuit boards with different sizes can be realized.

Description

Technical Field

[0001] This utility model relates to the field of circuit board processing technology, specifically to a drilling positioning structure for multilayer circuit boards. Background Technology

[0002] Multilayer circuit boards consist of multiple insulating and conductive layers. Drilling is used to create electrical connection channels between different conductive layers. For electronic components with pins, it is necessary to drill holes to insert the component's pins into the circuit board, and then solder them on the other side of the hole to achieve mechanical and electrical connection between the component and the circuit board.

[0003] A search of Chinese patent CN219780537U reveals a circuit board positioning and processing structure, which includes a processing table. Both sides of the top of the processing table are connected to end positioning plates and side positioning plates. The inner structures of the end positioning plates and side positioning plates are identical. Clamping components are connected to the opposite surfaces of the end positioning plates, and mounting posts are connected to the bottom of the end positioning plates. With this circuit board positioning and processing structure, when it is necessary to fix the circuit board to be processed, the circuit board only needs to be pressed downwards from the top of the clamping components, so that the circuit board rests on the end positioning plates and side positioning plates. The clamping components fix the circuit board, preventing displacement and errors during processing.

[0004] In the existing technology, due to the certain distance between adjacent mounting holes, the distance adjustment of the positioning plates at both ends is limited, that is, the clamping distance cannot be continuously and arbitrarily adjusted, making it difficult to clamp and position circuit boards of different sizes, thus reducing the adaptability of the positioning structure. Therefore, a new structure is needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a drilling positioning structure for multilayer circuit boards to solve the problems mentioned in the background art. To solve the above technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a drilling positioning structure for multilayer circuit boards, comprising:

[0007] The base and the circuit board body, with the circuit board body movably placed on the top of the base;

[0008] A multi-size adaptation component includes an inverted T-shaped plate, a strip receiving groove, an L-shaped slider, a rectangular plate, and a positioning plate. The inverted T-shaped plate is movably connected to both ends of the base. A strip receiving groove is opened on the side of the base. One end of the L-shaped slider is fixedly connected to both sides of the inverted T-shaped plate. The other end of the L-shaped slider is movably connected to the strip receiving groove. A rectangular plate and a positioning plate are movably connected to the side of the inverted T-shaped plate. The positioning plate is located above the circuit board body.

[0009] Furthermore, the multi-size adaptation component also includes an L-shaped receiving block, a first threaded groove, and a first adjusting screw. The L-shaped receiving block is fixedly connected to both sides of the base. The first threaded groove is opened through the L-shaped receiving block. The first adjusting screw is movably connected in the first threaded groove. One end of the first adjusting screw is movably connected to an inverted T-shaped plate.

[0010] Furthermore, the multi-size adaptation component also includes a guide groove and a guide block. The guide groove is opened on the side of the inverted T-shaped plate, and the guide block is fixedly connected to the side of the rectangular plate and the positioning plate. The guide block is movably connected in the guide groove.

[0011] Furthermore, both the guide groove and the guide block have a T-shaped cross-section.

[0012] Furthermore, the multi-size adaptation component also includes an L-shaped receiving plate, a second threaded groove, a second adjusting screw, and a center line. The top of the inverted T-shaped plate is fixedly connected to the L-shaped receiving plate, and the L-shaped receiving plate has a through-cut second threaded groove. The second adjusting screw is movably connected in the second threaded groove, and one end of the second adjusting screw is movably connected to a rectangular plate. The center line is provided in the middle of the base.

[0013] Furthermore, it also includes a protective and secure adsorption component, which includes a circular groove, a cylindrical rod, and a spring. The rectangular plate has circular grooves extending through both ends. The cylindrical rod is fixedly connected to the top of both ends of the positioning plate. The cylindrical rod is movably connected in the circular groove. The spring is movably sleeved on the outer ring of the cylindrical rod.

[0014] Furthermore, the protective and secure adsorption assembly also includes suction cups, which are fixedly connected to the bottom of the positioning plate, and the suction cups are arranged at equal intervals.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, the L-shaped slider can move continuously and freely within the strip-shaped receiving groove, thereby enabling the continuous movement of the inverted T-shaped plate. This allows for continuous adjustment of the positioning plate's movement distance, thus enabling the clamping and positioning of multi-layer circuit boards of various sizes and improving the applicability of the positioning structure.

[0017] Based on the above-mentioned beneficial effects, the positioning plate moves downward, causing the suction cup to firmly adhere to the multi-layer circuit board, thereby preventing the multi-layer circuit board from shifting during the drilling process; and when the rectangular plate moves downward along the cylindrical rod, with the cooperation of the positioning plate, the spring can be deformed and compressed, thereby buffering the pressure on the multi-layer circuit board and avoiding damage caused by overload of pressure on the multi-layer circuit board. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0020] Figure 2 This is a schematic diagram of the movable connection of the L-shaped slider of this utility model;

[0021] Figure 3 This is a schematic diagram of the movable spring connection of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation of the L-shaped slider of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101. Base; 102. Circuit board body;

[0025] 201. Inverted T-shaped plate; 202. Strip-shaped receiving groove; 203. L-shaped slider; 204. Rectangular plate; 205. Positioning plate; 206. L-shaped receiving block; 207. First threaded groove; 208. First adjusting screw; 209. Guide groove; 2010. Guide block; 2011. L-shaped receiving plate; 2012. Second threaded groove; 2013. Second adjusting screw; 2014. Center line;

[0026] 301. Circular groove; 302. Cylindrical rod; 303. Spring; 304. Suction cup. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0029] Please see Figure 1-4 As shown, this utility model is a drilling positioning structure for a multilayer circuit board, comprising:

[0030] The base 101 and the circuit board body 102 are movably placed on the top of the base 101;

[0031] The multi-size adaptation component includes an inverted T-shaped plate 201, a strip receiving groove 202, an L-shaped slider 203, a rectangular plate 204, and a positioning plate 205. The inverted T-shaped plate 201 is movably connected to both ends of the base 101. The strip receiving groove 202 is opened on the side of the base 101. One end of the L-shaped slider 203 is fixedly connected to both sides of the inverted T-shaped plate 201. The other end of the L-shaped slider 203 is movably connected to the strip receiving groove 202. The rectangular plate 204 and the positioning plate 205 are movably connected to the side of the inverted T-shaped plate 201. The positioning plate 205 is located above the circuit board body 102.

[0032] The base 101 ensures the movable placement of the circuit board body 102. Multiple circuit board bodies 102 are stacked and combined to form a multi-layer circuit board. The inverted T-shaped plate 201 ensures the installation of the L-shaped slider 203. The L-shaped slider 203 and the strip receiving groove 202 work together to ensure the uninterrupted movement of the inverted T-shaped plate 201. The rectangular plate 204 and the positioning plate 205 work together to ensure the initial pressing and positioning of multiple circuit board bodies 102.

[0033] The multi-size adaptation component also includes an L-shaped receiving block 206, a first threaded groove 207, and a first adjusting screw 208. The L-shaped receiving block 206 is fixedly connected to both sides of the base 101. The first threaded groove 207 is opened through the L-shaped receiving block 206. The first adjusting screw 208 is movably connected in the first threaded groove 207. One end of the first adjusting screw 208 is movably connected to the inverted T-shaped plate 201.

[0034] The L-shaped receiving block 206 provides a guarantee for the opening of the first threaded groove 207. The first threaded groove 207 provides a guarantee for the first adjusting screw 208 to push the inverted T-shaped plates 201 at both ends to move towards the multiple circuit board bodies 102, thereby realizing the horizontal clamping and positioning of the multiple circuit board bodies 102.

[0035] The multi-size adaptation component also includes a guide groove 209 and a guide block 2010. The guide groove 209 is opened on the side of the inverted T-shaped plate 201. The guide block 2010 is fixedly connected to the side of the rectangular plate 204 and the positioning plate 205. The guide block 2010 is movably connected in the guide groove 209. The cross-section of the guide groove 209 and the guide block 2010 is T-shaped.

[0036] The guide groove 209 and the guide block 2010 work together to ensure the smooth up and down movement of the rectangular plate 204 and the positioning plate 205, and to prevent the rectangular plate 204 and the positioning plate 205 from detaching from the inverted T-shaped plate 201.

[0037] The multi-size adaptation component also includes an L-shaped support plate 2011, a second threaded groove 2012, a second adjusting screw 2013, and a center line 2014. The top of the inverted T-shaped plate 201 is fixedly connected to the L-shaped support plate 2011. The second threaded groove 2012 is opened through the L-shaped support plate 2011. The second adjusting screw 2013 is movably connected in the second threaded groove 2012. One end of the second adjusting screw 2013 is movably connected to the rectangular plate 204. The center line 2014 is provided in the middle of the base 101.

[0038] The L-shaped receiving plate 2011 provides a guarantee for the opening of the second threaded groove 2012. The second threaded groove 2012 provides a guarantee for the up and down movement of the second adjusting screw 2013, thereby providing a guarantee for the rectangular plate 204 and the positioning plate 205 to generate pressing force.

[0039] Working principle: Multiple circuit board bodies 102 are stacked on top of the base 101. Simultaneously, the circuit board bodies 102 are moved to the middle of the base 101 according to the position of the center line 2014. The rectangular plate 204 and the positioning plate 205 are pulled upward. Then, the first adjusting screw 208 is turned at the first threaded groove 207. At this time, the first adjusting screw 208 pushes the two inverted T-shaped plates 201 at both ends to move towards the circuit board body 102. At this time, the L-shaped slider 203 moves along the strip receiving groove 202. Then, the rectangular plate 204 and the positioning plate 205 are released. With the cooperation of the guide block 2010 and the guide groove 209, the circuit board bodies 102 are moved downward to the top of the multiple circuit board bodies 102. Then, the second adjusting screw 2013 is turned at the second threaded groove 2012 to apply external force to the rectangular plate 204 and the positioning plate 205. This step can achieve clamping and positioning of circuit board bodies 102 of different sizes.

[0040] Please see Figure 1-4 As shown, this embodiment, based on the above embodiment, further includes:

[0041] The protective and secure adsorption assembly includes a circular groove 301, a cylindrical rod 302, and a spring 303. The circular groove 301 is opened through both ends of the rectangular plate 204. The cylindrical rod 302 is fixedly connected to the top of both ends of the positioning plate 205. The cylindrical rod 302 is movably connected in the circular groove 301. The spring 303 is movably sleeved on the outer ring of the cylindrical rod 302.

[0042] The circular groove 301 and the cylindrical rod 302 work together to ensure the smooth relative movement between the rectangular plate 204 and the positioning plate 205, and the spring 303 provides a buffer against the pressing force.

[0043] The protective and secure adsorption components also include suction cups 304, and the bottom of the positioning plate 205 is fixedly connected to the suction cups 304, with the suction cups 304 arranged at equal intervals.

[0044] The use of 304 stainless steel suction cups ensures enhanced clamping and pressing effects.

[0045] Working principle: During the downward movement of the positioning plate 205, the suction cup 304 deforms under force, achieving firm adsorption of multiple circuit board bodies 102. During the downward movement of the rectangular plate 204, the spring 303 deforms under force to buffer the pressing force.

[0046] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drilling positioning structure for a multilayer circuit board, characterized in that, include: The base (101) and the circuit board body (102) are provided, with the circuit board body (102) movably placed on the top of the base (101). A multi-size adaptation component includes an inverted T-shaped plate (201), a strip receiving groove (202), an L-shaped slider (203), a rectangular plate (204), and a positioning plate (205). The inverted T-shaped plate (201) is movably connected to both ends of the base (101). The strip receiving groove (202) is opened on the side of the base (101). One end of the L-shaped slider (203) is fixedly connected to both sides of the inverted T-shaped plate (201). The other end of the L-shaped slider (203) is movably connected to the strip receiving groove (202). The rectangular plate (204) and the positioning plate (205) are movably connected to the side of the inverted T-shaped plate (201). The positioning plate (205) is located above the circuit board body (102).

2. The drilling positioning structure for a multilayer circuit board according to claim 1, characterized in that: The multi-size adaptation component also includes an L-shaped receiving block (206), a first threaded groove (207), and a first adjusting screw (208). The L-shaped receiving block (206) is fixedly connected to both sides of the base (101). The first threaded groove (207) is opened through the L-shaped receiving block (206). The first adjusting screw (208) is movably connected in the first threaded groove (207). One end of the first adjusting screw (208) is movably connected to an inverted T-shaped plate (201).

3. The drilling positioning structure for a multilayer circuit board according to claim 1, characterized in that: The multi-size adaptation component also includes a guide groove (209) and a guide block (2010). The guide groove (209) is opened on the side of the inverted T-shaped plate (201). The guide block (2010) is fixedly connected to the side of the rectangular plate (204) and the positioning plate (205). The guide block (2010) is movably connected in the guide groove (209).

4. The drilling positioning structure for a multilayer circuit board according to claim 3, characterized in that: The guide groove (209) and the guide block (2010) are both T-shaped in cross-section.

5. The drilling positioning structure for a multilayer circuit board according to claim 1, characterized in that: The multi-size adaptation component also includes an L-shaped support plate (2011), a second threaded groove (2012), a second adjusting screw (2013), and a center line (2014). The top of the inverted T-shaped plate (201) is fixedly connected to the L-shaped support plate (2011). The L-shaped support plate (2011) has a through-cut second threaded groove (2012). The second adjusting screw (2013) is movably connected in the second threaded groove (2012). One end of the second adjusting screw (2013) is movably connected to a rectangular plate (204). The center line (2014) is provided in the middle of the base (101).

6. The drilling positioning structure for a multilayer circuit board according to claim 1, characterized in that: It also includes a protective and secure adsorption component, which includes a circular groove (301), a cylindrical rod (302), and a spring (303). The rectangular plate (204) has a circular groove (301) extending through both ends. The cylindrical rod (302) is fixedly connected to the top of both ends of the positioning plate (205). The cylindrical rod (302) is movably connected in the circular groove (301). The spring (303) is movably sleeved on the outer ring of the cylindrical rod (302).

7. The drilling positioning structure for a multilayer circuit board according to claim 6, characterized in that: The protective and secure adsorption assembly also includes suction cups (304), and the bottom of the positioning plate (205) is fixedly connected to the suction cups (304), with the suction cups (304) arranged at equal intervals.

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